howMed Know Yourself
In case control study, we start with diseased group (“cases”); which we compare with non-diseased group (“controls”). We look back … Read More »
Case Control Studies
Ecological Studies
In ecological studies, we consider aggregates of individuals. Aggregates often defined by units e.g. geographic region, school or health care … Read More »
Cross-Sectional Studies
Cross sectional studies are conducted at a single point in time or over a short period of time. There is … Read More »
Case Reports and Case Series
A case report is a detailed report by a physician of an unusual disease in a single person. The population … Read More »
Study Designs
The research designs may be roughly categorized as ‘Observational’ or ‘Experimental’. The experimental studies are done on variables whose control … Read More »
Data Collection in Research
Investigator may collect data by direct interview, mail of questionnaire, review of previously collected data, histories and other similar methods. … Read More »
Sample Selection and Sampling Techniques
The subject selection is important for planning your research project. You need to think about how you are going to … Read More »
Research Hypothesis
‘Hypothesis is a statement containing two or more variables that are measurable or potentially measurable and that specify how the … Read More »
Variables in Research
Variable is a measurable or quantifiable characteristic of a person, object or phenomenon that can take different values. Variables are … Read More »
Formulation of Objectives in Research
A goal is general and long term overall desired outcome for a project. It is bigger in impact than an … Read More »
